Drying-box.



2 slums-sum 1 PATENTED AUG. 11, 1908.

M. E. DEJONGE. DRYING BOX.

APPLICATION FILED NOV 6 1906 PATENTED AUG. 11,1908. M. E. DEJONGE. v

DRYING BOX.

PPLI ON 1) NOV.8 1906. A FILE 2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

MAX EMIL DEIONGE, OF FITOHBURG, MASSACHUSETTS.

DRYING-3 OK.

T 0 all whom it may concern:

Be it known that I, h/IAX EMIL DEJONGE, a citizen of the United States, residing in Fitchburg, in the county of WVorcester and State of Massachusetts, have invented an Improvement in Drying-Boxes, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention relates to a fire-proof and insulated drying box or chamber, especially desi ned and adapted among other uses to be emp oyed for drying paper or other material.

The present invention has for its object to rovide a simple, inexpensive and efficient rying box, with which paper or like material may be most effectively dried at a minimum expense and in the least ossible time, and with which the danger of re is reduced to a minimum and the temperature of the room or building in which the drying box is located is materially lowered and rendered healthy and comfortable for the operators.

111 the present instance, the invention is shown as embodied in a drying box for drying paper in the form of a web, which is fed through the box by means of an endless apron, and provision is made as will be described, for gaining access to the interior of the box at different points.

These and other features of this invention will be pointed out in the claims at the end of this specification.

Figure 1 is a side elevation of a drying box embodying this invention; Fig. 2, a plan view of the drying box shown in Fig. 1 Fig. 3, a cross-section on an enlarged scale, taken on the line 3-3, Fig. 1 Fig. 4, a detail in crosssection of the supporting-frame; Fig 5, an enlarged detail in section showing a portion of a top section and a side section, and Fig. 6, an enlarged detail showing a portion of the bottom section and a side section; Fig. 7, a detail of a top section; Fig. 8, a detail of a side section, and Fig. 9, a detail to be referred to.

The drying box herein shown as embodying this invention, is made substantially oblong in cross section and comprises a top a, bottom I), and sides 0, of a construction as will be described, for imparting fire-proofing and heat-insulating properties to said box. For this purpose, the top, bottom and sides of the drying box are made of foraminous or reticulated metal, and one or more layers or Specification of Letters Patent.

Application filed November 8, 1906.

sheets of asbestos, mineral wool or like fire- Patented Aug. 11., 1908.

Serial No. 342,509.

proof material. The top a, bottom I) and sides 0 of the drying box are preferably made in sections to facilitate construction, repairs, etc., and each section may and preferably will be made as shown in Fig. 7 and 8, and comprises one or more layers or sheets d of asbestos or other fire-proof material interposed betw'een two sheets or layers f, g of foraminous or reticulated metal, such as wirecloth or netting, which are firmly secured as by bolts or screws h, or otherwise to a metallic frame or skeleton comprising flat, longitudinal bars i and end bars The sections of the top a and bottom I) of the box may be constructed like the side sections, or they may be provided with angle iron ends connected by tie rods 40, and may rest upon and be spported by longitudinally extended angle irons k, extended the length of the drying box and connected together by vertically arranged bars Z, which may be fastened to the ceiling or other overhead sup ort, and

also by vertically arranged channe bars m extended to the floor a and forming supporting posts or legs for said box.

T 1e supporting bars Z on the opposite sides of the drying box may be connected together by tie rods 0 located above and below the box, (see Fig. 4).

The supporting bars Z, m may be arranged and fastened to the angle iron bars is of the su porting frame for the box, so as to subdivi e the space between the upper and lower longitudinal bars is into open sections, which are closed by the side sectlons of the box, the longitudinal bars 2' of which are firmly secured to the supporting bars is by bolts, screws or rivets 10 (see Figs. 1 and 5). The end bars of the side sections abut against the supporting bars Z, m to form a close joint.

The sections of the top a and bottom I) of the box may be laid upon the horizontal portion of the angle irons Zc constituting the sup porting frame for the box, after the manner represented in Figs. 5 and 6. If desired the asbestos layers may be bound to the wire cloth by wire threads 12, represented in Figs. 5 and 6.

The drying box may be rovided with end walls of a construction simi ar to the side sections, except that such end walls may be provided with suitable slots or openings, not shown, as they are well understood, for the passage of an endless belt, apron or carrier 14 through said box, the said endless apron passing about suitable end rolls 15, 16., (see Figs. 1 and 2) located outside of the'drying box and journaled in suitable brackets 17, 18, secured to a stationary support, the brackets 17 for the roll 15 being represented in Fig. 1 as secured to an extension of the main supporting frame, and the brackets 18 for the roll 16 being represented as secured to uprights 20. The roll 16 may be driven in any usual manner as by a belt 21.

The endless belt or apron 14 may be supported Within the drying box by rolls 22, which are journaled in brackets or arms 23 secured as by bolts 24 to the supporting posts or legs m as represented in Figs. 1 and 9, and provision is made for gaining access to said supporting rolls through the side. of the box. For this purpose, fireroof doors hinged at 31 are provided, W 1ich doors may be of the same construction as the side sections of the box.

The drying box is provided with suitable inlet and outlet openings for the circulation i of hot air through the box, and not herein of the drying box.

shown, as they may be of any suitable construction and are not necessary for the present invention, which relates to the structure The drying box may also contain the usual heating pipes, not shown.

From the above description, it will be seen that the paper or other material on its passage through the drying box may be subjected to a substantially high temperature "1 and effectively dried in a minimum time, at

the least possible expense, and with a minimum inconvenience to the operator, while at the same time the danger from fire is reduced 7 to a minimum.

It will be observed, that the drying box is fire-proof, and at the same time heat-insulating, owing to its walls being practically formed of asbestos or like material, which material is held in place by a reticulated or foraminous metal frame, and this latter element enables the cost of the box to be materially reduced. Furthermore, it will be seen, that by preventing or largely reducing heat radiation, a less quantity of heat is required to dry the material, which enables the box to be made of minimum length, while at the same time, the temperature of the room in which the drying box is located is materially 4 reduced, thereby enabling the o erators to work with more comfort and at ess danger to their health. It will also be observed that the sections com rising the top of the box rest upon the ang e irons 1c and are caq gable of being lifted to uncover the top ofthe ox more or less and provide vent openings for the heat, which enables the box to be used for drying paper requiring a high heat when the top is closed, and also to be used for drying paper which requires a materially less heat. The sections comprising the top may be made to perform the function of cured to said frame, substantially as de- N scribed.

2. A drying box of the character described, comprising' longitudinally extended supporting bars, and sectional walls supported bysaid bars, the sections of said walls M comprising an 0 en metal frame, sheets of reticulated meta secured to said frame, and a layer or sheet of heat-insulating material inter osed between said sheets of reticulated meta substantially as described.

8. A drying box of the character described, comprising a skeleton frame composed of longitudinally extended bars, means to connect said bars together and walls for said skeleton frame composed of a plurality .of open frames, reticulated metal sheets and a layer of fire-proof material secured to said open frames between said sheets.

4. A drying box of the character described, provided with longitudinally extended angle irons constituting a supporting frame, and walls supported by said frame and comprising sections composed of metallic side and end bars secured together and, foraminous sheets or layers of metal, and an interposed layer of heat-insulating material secured to said side and end bars, substantially as described.

5. A drying box of the character described, having walls thereof composed of sections, each comprising an open frame and a foraminous sheet of metal and a layer of heat-insulating material covering the openings'in said metal sheet and secured to said open frame, substantially as described.

6. A drying box of the character described, provided with longitudinally extended angle irons constituting a supporting frame, top and bottom walls composed of sections resting upon said angle irons, and side and end walls composed of sections fastened to said angle irons, said sections being composed of foraminous metal and a layer of fire-proof material, substantially as described.

7. A drying box of the character described, comprising a metallic skeleton sup porting frame composed of longitudinally extended bars arranged to form the corners of said box, and means for connecting said bars together, and a plurality of sections of fire- 7 said skeleton frame to form the walls of the box substantially as described.

8. A dryin box of the character described, provided with longitudinally extended bars constituting a supporting frame, top and bottom walls composed of sections resting upon said bars, and side walls com osed of sections fastened to said bars, saic sections being composed of fire-proof and heatinsulating material, said top sectionsbeing capable of being removed to uncover more or less of the top of the box, substantially as described.

9. A drying box of the character described, comprising a skeleton supporting frame composed of longitudinally extended bars, means to connect said bars together, side walls for said box composed of a plurality of sections of fireroof material secured to the side bars of said skeleton frame, and top and bottom walls sup orted by said frame and composed of a p urality of sections of fireroof material, said top sections being capab e of being removed to uncover the top of the box more or less, substantially as described.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

MAX EMIL DEJONGE.

Witnesses:

FRANK H. BROWN, JOSEPH I-I. KIBLING. 

